Suppression of superfluidity of exciton-polaritons by magnetic field

Yuri G. Rubo; A. V. Kavokin; I. A. Shelykh

doi:10.1016/j.physleta.2006.05.015

Suppression of superfluidity of exciton-polaritons by magnetic field

Yuri G. Rubo^*, A. V. Kavokin, I. A. Shelykh

^*Corresponding author for this work

Faculty of Physical Sciences

Research output: Contribution to journal › Article › peer-review

93 Citations (Scopus)

Abstract

We show that the properties of exciton-polariton condensate in a semiconductor microcavity are strongly sensitive to the external magnetic field normal to the cavity plane. In particular, the superfluidity is suppressed at a critical magnetic field B_c proportional to the polariton concentration. For B < B_c the Zeeman splitting of polaritons is exactly compensated by polariton-polariton interactions in the elliptically polarized condensate. Above the critical point, the spin degeneracy is lifted and the superfluidity reappears again on the circularly polarized lower polariton branch.

Original language	English
Pages (from-to)	227-230
Number of pages	4
Journal	Physics Letters, Section A: General, Atomic and Solid State Physics
Volume	358
Issue number	3
DOIs	https://doi.org/10.1016/j.physleta.2006.05.015
Publication status	Published - 16 Oct 2006

Bibliographical note

Funding Information:
We are grateful to Guillaume Malpuech for valuable discussions. This work was supported in part by DGAPA-UNAM (under the project IN116402) and EPSRC.

Other keywords

Exciton-polaritons
Polarization
Superfluidity
Zeeman splitting

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10.1016/j.physleta.2006.05.015

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title = "Suppression of superfluidity of exciton-polaritons by magnetic field",

abstract = "We show that the properties of exciton-polariton condensate in a semiconductor microcavity are strongly sensitive to the external magnetic field normal to the cavity plane. In particular, the superfluidity is suppressed at a critical magnetic field Bc proportional to the polariton concentration. For B < Bc the Zeeman splitting of polaritons is exactly compensated by polariton-polariton interactions in the elliptically polarized condensate. Above the critical point, the spin degeneracy is lifted and the superfluidity reappears again on the circularly polarized lower polariton branch.",

keywords = "Exciton-polaritons, Polarization, Superfluidity, Zeeman splitting",

author = "Rubo, {Yuri G.} and Kavokin, {A. V.} and Shelykh, {I. A.}",

note = "Funding Information: We are grateful to Guillaume Malpuech for valuable discussions. This work was supported in part by DGAPA-UNAM (under the project IN116402) and EPSRC.",

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doi = "10.1016/j.physleta.2006.05.015",

language = "English",

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journal = "Physics Letters, Section A: General, Atomic and Solid State Physics",

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T1 - Suppression of superfluidity of exciton-polaritons by magnetic field

AU - Rubo, Yuri G.

AU - Kavokin, A. V.

AU - Shelykh, I. A.

N1 - Funding Information: We are grateful to Guillaume Malpuech for valuable discussions. This work was supported in part by DGAPA-UNAM (under the project IN116402) and EPSRC.

PY - 2006/10/16

Y1 - 2006/10/16

N2 - We show that the properties of exciton-polariton condensate in a semiconductor microcavity are strongly sensitive to the external magnetic field normal to the cavity plane. In particular, the superfluidity is suppressed at a critical magnetic field Bc proportional to the polariton concentration. For B < Bc the Zeeman splitting of polaritons is exactly compensated by polariton-polariton interactions in the elliptically polarized condensate. Above the critical point, the spin degeneracy is lifted and the superfluidity reappears again on the circularly polarized lower polariton branch.

AB - We show that the properties of exciton-polariton condensate in a semiconductor microcavity are strongly sensitive to the external magnetic field normal to the cavity plane. In particular, the superfluidity is suppressed at a critical magnetic field Bc proportional to the polariton concentration. For B < Bc the Zeeman splitting of polaritons is exactly compensated by polariton-polariton interactions in the elliptically polarized condensate. Above the critical point, the spin degeneracy is lifted and the superfluidity reappears again on the circularly polarized lower polariton branch.

KW - Exciton-polaritons

KW - Polarization

KW - Superfluidity

KW - Zeeman splitting

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DO - 10.1016/j.physleta.2006.05.015

M3 - Article

AN - SCOPUS:33747198003

VL - 358

SP - 227

EP - 230

JO - Physics Letters, Section A: General, Atomic and Solid State Physics

JF - Physics Letters, Section A: General, Atomic and Solid State Physics

SN - 0375-9601

IS - 3

ER -

Suppression of superfluidity of exciton-polaritons by magnetic field

Abstract

Bibliographical note

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